Albin k



A. K. LUNGREN.

TUHNBUCKLE.

AQPLlcATloN m50 mm1` 191s.

1,32 l, l l 3 Patented Nov. 11, 1919,

/N/ENTOR.

- thereto.

Winn etnias sario.

ALBIN x. LONGREN, or KANSAS CITY, iaissoriiti.

TURN BUCKLE.

Leanne...

To all whom t may concern i citizen of the United States, residing at Kansas City, in the county of Jackson and State of Missouri, have invented Vcertain new and useful Improvements in Turnbuckles; andI I do declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompany- 4 ing drawings, and to the letters and figures of reference marked thereon, 'which form a part of this specification. j

My invention relates to turnbuckles and more particularly to a turnbuckle lock; the principal object of the invention bein provide simple and effective means w ich may be easily applied to orremoved from 5 the turnbuckle, and which will effectively prevent` any possible turning or loosening of the turnbuckle while Ait is serving in its functional capacity.r

A further obj ect of the invention is to pro- `vide a lock of this'character, particularly applicable to that type of turnbuckle used in aeroplanes, or the like, for tightening or j adjusting the frame or wing wires.

In accomplishing these objects, I have provided improved details of structure, the preferred forms of which are illustrated in the accompanying drawings, wherein Figure I is a side view of a' turnbuckle having a locking member constructed according to the present invention applied Fig. II isa longitudinal, sectional view of the same, particularly showing the application of the locking member to the screw stems.

Fig. III is a 'view of the locking member' removed from the turnbuckle. 1

lReferring more in .detail to the drawingsz 1 designates a turnbuckle to which the presentlock is particularly applicable, andl which comprises a barrel or body portion 2, whereinto the opposite end stems 3 and 4 are threaded respectively by 'right and left hand threads, and are adapted to move, when the deviceV is in operation, simultaneously into or from the barrelby revoluble movement of the latter.

In order that the device may be attachedV in functional position to the frame or to the ends of cables, or wires, be'I connected or tightened thereby, I provide the outery end Specification of Letters Patent. i, Paten-#ggd NGV, 111, 19319,

Application led January S1, 1918. Serial No. 214,626. i

'of the stem 4 with. anv eye 5 adapted to receive the end of a cable 6, and the end of the stem 3 with a yoke head 7 comprising ,spaced wings'8--8, through which a bolt 9 is extended toanchor that end of the turnbuckle to a link l() whereby the same is fixed to a suitable anchorage. In the present vinstance, the cable 6 is attached by extending the end thereof through the eye and turninfr the same back along the cable and the lapt-B ping portions wound with fine wire. This connection, however, is not essential to the use of the turnbuckle nor is it essential that one stem be provided with a yoke and the other with the eye, but both stems may comprise an eye, or a yoke portion, without preventing the use of the locking member, presently described.

With the turiibuckle so arranged and the cable 6 andlink 10 attached thereto, it is apparent that turning of the barrel 2 in' one direction will move both stems inwardly, and by Vturning the same in the opposite direction both stems will move outwardly, and in order that the stem and body parts may be locked when adjusted to a certain po sition, to prevent any possible turning of the parts which might allow members connected there y to be loosened, I haveA provided a locking means, the same comprising a single piece of wire 12 of substantial strength and stiffness to edectively serve its purpose, and which is bent'at one end to form a hook 13, and at its opposite end basa portion 14 turned laterally therefrom in the same plane with the hook 13.-

After the stem members `have been properly adjusted in the barrel 2 they may be locked iii this position by the wire 12 by in` serting its hooked end 13 within the'eye 5 of the stem 3 and extending the laterally turned end portion between the ears of the yoke head 7. To prevent displacementiof rel, and the ends thereof retained inlocking. position within the eye and yoke members.

With the parts so constructed, and the necessary key sufficiently that it may be removed from cables attached thereto, in using thelturnbuckle, the cables are sired tensioniby turning lock wire 12 withv a cotter key 15,locajted thereon is then applied by inserting the hook 13 within the eye 5,5and extending the key 15 through barrel apertures and the end,

portion 14 ofthe wire between the yoke wings 8--8. The ends of the cotter key are then bent along the barrel to retain the key, and the latter retains the lock wire in barrel and 4all are thereby position along the possi-ble revoluble moveloclred against any ment.

To remove the locking device itis only to straighten the ends of the cotter the barrel, andthe ends of-the wire removed from the eye and yoke members. The parts are then free and may be adjusted asdesired.`

It isapparent that a device of this character is simple in operation,.substantial, may be provided at a small cost, and may be easily and quickly applied or removed when adjustment is necessary, and as adjustment of such parts seldom varies more than one half turn of the stems, it is apparent that the same lock wire may be used for a number of adjustments of the parts between certain limits.

Having thus described my invention, what I claim as new therein, and desire to secure by Letters-Patent, isz- 1. In combination with a turnlbuckle comprising a central barrel and screw stems threaded into opposite ends thereof, of a locking member having end portions applicable to the stems in locking relation, and means for fixing the member to the barrel to prevent any relative rotation of the turnbuckle parts.

2. In combination with a turnbuckle com; prising a connecting barrel, ,screw stems threaded into opposite ends of said barrel having openings therethrough at their outer ends, a locking memberv extending along said body and having portio tiled latfirst adjusted to kde, 1

the barrel 2. Tlmemovalole means for securing the locking l [insidia I erally therefrom at 'its opposite .ends and adapted to seatin said'stem openings, and

.. emfber to the connecting barrel toprevent rotation of the latter relative to the screw y a central barrel having an .aperturev rough, screw stems threaded into vopposite ends of said barrel and having open ings therein at their outer portions, a locking member extendmg along said barrel and having opposite end portions seated in said screw openings, and a key mounted on said locking member and extending through said barrel aperture, 'for the purpose set forth. Y fl. In combination with a turnbuckle comprising a central barrel having 'an aperture therethrough, right and left hand screw stems threaded into opposite ends of said barrel, each` having an eyel or opening atits outer end, a-locking wire extending along said barrel and having a hook portion at oneend seated in one of said stem openings and a laterally turned-portion at its opposite end seated in the opening of the opposite screw stem, and a cotter key having an eyeV for receiving shank removably aperture.l I i `5. In combination with a turnbuckle comprising a barrel having a central aperture therethrough, right and left hand screw stems threaded into' opposite ends of said said locking wire and a locked within said barrel barrel; Vone of said stems having an eye at.

its outer end and the other stem comprising a yoke head; a cotter key eXtendin through said barrel aperture removably locled therein and having an eye at one end, a locking wire extendingalong the barrel through said key eye and having a hook at one end seated in the stem eye and .avlaterally turned por'- tion at its opposite end inserted in said yoke,

for the purpose set forth.

In testimony whereof I affix my signature.

' Ataru K. Louonnn. 

